The Sakura Incubator sits at the back of the Cherry Blossom zone in Roblox, and it hands out two of the best mutations in the game: Bloom at 1.5x and the rare Spirit Bloom at 3x. Getting there takes real effort since you need 3.5B speed just to enter the zone, plus a Crane pet to sacrifice before the machine activates. Once it's running, every attempt comes down to a timed event and a crystal grind. Here's exactly how to make it work.
How do you unlock the Sakura Incubator?
The machine won't do anything until you feed it a Crane. Crane is an Epic pet that drops from eggs inside the Cherry Blossom zone, which means you need to reach that zone first. The minimum speed requirement to steal eggs there is 3.5B, so if you're not there yet, focus on speed training before making the trip. Check out this Steal an Egg beginner guide to get your income and speed loop sorted before heading into the Cherry Blossom area.
Once you have a Crane sitting in your inventory, walk up to the Sakura Incubator and interact with it. Submit the Crane to activate the machine permanently. The size and mutations on the Crane don't matter at all, so hand over the smallest one you have rather than wasting a good specimen. You lose the Crane in the process, but the unlock is permanent, so you only do this once.
Submit Crane to activate incubator
What is the Great Bloom Event?
Unlocking the Sakura Incubator also triggers access to The Great Bloom Event, a timed Crystal-farming window that repeats on a fixed server schedule. The event fires every 30 minutes and lasts roughly 3 minutes each time. When it starts, an on-screen notification appears. After unlocking the incubator, a timer above the machine also shows the countdown to the next event so you're never guessing.
During those three minutes, cherry blossom trees in the zone become harvestable. Pull out your baseball bat and start smashing them to collect Sakura Crystals. That's the only way to get them, and they're the fuel for every mutation attempt.
How to use the Sakura Incubator
The process is straightforward once you have crystals stocked up. Keep an unhatched egg in your inventory before you head to the machine. Eggs already laid down in your pen or already hatched cannot go into the incubator, so plan ahead and hold back any rare eggs you want to mutate.
Here's the full sequence:
- Keep an unhatched egg in your inventory and travel to the Cherry Blossom zone.
- Interact with the Sakura Incubator and submit the egg you want to mutate.
- Deposit Sakura Crystals until the charge meter hits at least 100%.
- Press Mutate to process the egg and receive your mutation.
What are the Bloom and Spirit Bloom mutation chances?
Every egg processed through the Sakura Incubator at 100% or higher charge rolls on the following table:
Spirit Bloom is the target. A 3x multiplier is among the strongest in the game, sitting at the top of the mutation tier list alongside other rare rolls. The 2.5% chance means you should expect to burn through a lot of eggs before one appears. There's no special egg type or separate item that improves the roll directly, though Robux can be spent to boost Spirit Bloom luck if you want to accelerate the process.
For context on how these mutations stack up against everything else available, the Steal an Egg mutations guide covers every multiplier in the game from the lowest tier up to Spirit Bloom's 3x ceiling.
How do you farm Sakura Crystals efficiently?
The math here is simple: more crystals per event means more mutation attempts per hour. The single best habit is staying inside the Cherry Blossom zone between events rather than farming other biomes. When the event notification hits, you're already in position and can spend the full three minutes on trees instead of sprinting back from somewhere else.
Equip the baseball bat the moment the notification appears and work through as many trees as possible before the timer expires. There's no complex rotation or priority system. Hit trees, collect crystals, repeat every 30 minutes.
Building toward the Cherry Blossom zone
Reaching 3.5B speed is the real barrier for most players. If you're still working toward that threshold, the Steal an Egg money guide breaks down the income loop and pet fusion strategies that accelerate your progress through earlier biomes. Getting your earnings per second high enough to fund speed upgrades is the fastest path to the Cherry Blossom zone and, by extension, the Sakura Incubator.
For everything else the game has to offer once you're operating at this level, the full Roblox guides collection has you covered with strategies across every system in Steal an Egg.